Information display device

ABSTRACT

An information display device (1G) attachable to a structure includes a display panel (23) and a surface member (11). The display panel (23) has a display surface and displays information on the display surface. The surface member (11) is disposed on the display surface side of the display panel (23) and is in a state where only the information displayed on the display surface of the display panel (23) is visible through the surface member (11) when the display panel (23) is turned on. The surface member includes a first layer (71) disposed on a front side, and a second layer (72) that is disposed on the display panel (23) side with respect to the first layer (71) and adjusts light transmittance of the surface member (11).

TECHNICAL FIELD

The present disclosure relates to an information display deviceincluding a display panel.

BACKGROUND

As an information display device including a display panel and a surfacemember, there is known an information display device that displayscontents displayed on the display panel through the surface member(refer to Japanese Patent Unexamined Publication No. 2012-118513).

SUMMARY

It is possible to improve the designability of a space by covering thedisplay panel with a surface member and displaying only the informationto be displayed via the surface member on the wall without making theuser feel the presence of the display panel. However, in order to makethe display panel invisible through the surface member, it is necessaryto suppress external light transmitted through the surface member, andwhen the light transmitted through the surface member from the displaypanel attenuates, there is a concern that it is difficult to see theinformation displayed on the display panel.

An information display device according to the disclosure aims to allowa user to see information from a display panel displayed on a surfacemember without being aware of the presence of the display panel.

An information display device according to the disclosure is aninformation display device attachable to a structure, and includes: adisplay panel that has a display surface and displays information on thedisplay surface; and a surface member that is disposed on the displaysurface side of the display panel and through which only the informationdisplayed on the display surface of the display panel becomes visiblewhen the display panel is turned on. The surface member includes a firstlayer disposed on a front side, and a second layer that is disposed onthe display panel side with respect to the first layer and adjusts lighttransmittance of the surface member.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a usage environment of an information display deviceaccording to Embodiment 1.

FIG. 2 illustrates a schematic configuration of a display deviceaccording to Embodiment 1.

FIG. 3 is a schematic sectional view of the information display deviceaccording to Embodiment 1.

FIG. 4 illustrates a usage environment of an information display deviceaccording to a modification example of Embodiment 1.

FIG. 5 is a configuration view of a system for operating the informationdisplay device according to the modification example.

FIG. 6 illustrates a usage environment of an information display deviceaccording to another modification example of Embodiment 1.

FIG. 7 is a configuration view of a system for operating the informationdisplay device according to the modification example.

FIG. 8 is a schematic sectional view of the information display deviceaccording to the modification example.

FIG. 9 illustrates a usage environment of an information display deviceaccording to another modification example of Embodiment 1.

FIG. 10 is a configuration view of a system for operating theinformation display device according to the modification example.

FIG. 11 is a schematic sectional view of the information display deviceaccording to the modification example.

FIG. 12 illustrates a usage environment of an information display deviceaccording to another modification example of Embodiment 1.

FIG. 13 is a configuration view of a system for operating theinformation display device according to the modification example.

FIG. 14 is a schematic sectional view of the information display deviceaccording to the modification example.

FIG. 15 illustrates a usage environment of an information display deviceaccording to another modification example of Embodiment 1.

FIG. 16 is a configuration view of a system for operating theinformation display device according to the modification example.

FIG. 17 is a schematic sectional view of an information display deviceaccording to Embodiment 2.

FIG. 18 is a schematic sectional view of an information display deviceaccording to Embodiment 3.

FIG. 19 is a schematic sectional view of an information display deviceaccording to Embodiment 4.

FIG. 20 illustrates an information display device according to amodification example of Embodiment 4.

FIG. 21 is a schematic sectional view of an information display deviceaccording to another modification example of Embodiment 4.

FIG. 22 is a schematic sectional view of an information display deviceaccording to Embodiment 5.

FIG. 23 is a schematic sectional view of an information display deviceaccording to a modification example of Embodiment 5.

FIG. 24 is a schematic sectional view of an information display deviceaccording to Embodiment 6.

FIG. 25 is an exploded sectional view of the information display deviceaccording to Embodiment 6.

FIG. 26 is a schematic sectional view of an information display deviceaccording to a modification example of Embodiment 6.

FIG. 27 is a schematic sectional view of an information display deviceaccording to another modification example of Embodiment 6.

FIG. 28 is a schematic sectional view of an information display deviceaccording to another modification example of Embodiment 6.

FIG. 29 is a schematic sectional view of an information display deviceaccording to Embodiment 7.

FIG. 30 is a schematic sectional view of an information display deviceaccording to a modification example of Embodiment 7.

FIG. 31 illustrates a usage environment of an information display deviceaccording to Embodiment 8.

FIG. 32 is a configuration view of a system for operating theinformation display device according to Embodiment 8.

FIG. 33 is a schematic sectional view of the information display deviceaccording to Embodiment 8.

FIG. 34 illustrates a usage environment of an information display deviceaccording to Embodiment 9.

FIG. 35 is a configuration view of a system for operating theinformation display device according to Embodiment 9.

FIG. 36 is a schematic sectional view of the information display deviceaccording to Embodiment 9.

FIG. 37 illustrates a usage environment of an information display deviceaccording to Embodiment 10.

FIG. 38 illustrates an appearance of the information display deviceaccording to Embodiment 10.

FIG. 39 is an exploded sectional view of the information display deviceaccording to Embodiment 10.

FIG. 40 is a schematic sectional view of the information display deviceaccording to Embodiment 10.

FIG. 41 is a perspective view of a structure before an informationdisplay device according to a modification example of Embodiment 10 isattached.

FIG. 42 is a perspective view of a structure in the middle of attachingthe information display device according to the modification example.

FIG. 43 is a perspective view of a structure in a state where theinformation display device according to the modification example isattached.

FIG. 44 illustrates a usage environment of the information displaydevice according to another embodiment.

FIG. 45 is a schematic sectional view of the information display deviceof FIG. 44.

DESCRIPTION OF EMBODIMENTS

Hereinafter, embodiments will be described in detail with reference tothe drawings as appropriate. However, there is a case where anunnecessary detailed description is omitted. For example, there is acase where the detailed description of a well-known item or a redundantdescription of substantially the same configuration is omitted.

In addition, the attached drawings and the following description areprovided in order to enable those skilled in the art to fully understandthe disclosure, and are not intended to limit the subject matterdescribed in the claims.

In the following description, a “front surface side” or a “front side”of an information display device is a side on which ambient light orexternal light is incident or a side closer to a user who sees theinformation display device, unless otherwise specified. A “back surfaceside” or a “back side” is a side opposite to the “front surface side” orthe “front side”, and is a side where light of a display panel isemitted or guided.

In the information display device according to the disclosure, a surfacemember that covers the entirety or a part of a wall surface having adesignability and light transmitting properties is disposed on a frontsurface of the display panel. The information display device accordingto the disclosure can realize a seamless design having no seam between awall surface and an information display region, and can also realize aninformation display device having operability.

In the following description, a case where the information displaydevice is used in an aircraft is employed as an example.

1. Embodiment 1

FIG. 1 illustrates a usage environment of information display device 1according to the embodiment.

In the usage environment in the embodiment, information display device 1is disposed on wall surface 10 which is a part of the interior of theaircraft. Information display device 1 transmits light of the displaypanel from the back side of surface member 11 and displays information(content information, character information, image, video, and the like)in display region 1 a on surface member 11. User 13 can operate anoperation screen displayed in display region 1 a of surface member 11 todisplay and change information and make a request to a crew.

1-1. Configuration

Hereinafter, an outline of the configuration and operation ofinformation display device 1 of the embodiment will be described withreference to FIGS. 2 and 3. Information display device 1 of theembodiment includes display device 20 installed behind surface member11. Information such as contents or characters displayed on the displaysurface of display device 20 is displayed on the surface of surfacemember 11 through surface member 11 and presented to user 13.

FIG. 2 illustrates a schematic configuration of display device 20 of theembodiment. Display device 20 includes touch panel 21, CPU 22, anddisplay panel 23. Touch panel 21 detects an input of user 13 via surfacemember 11 based on a change in electrostatic capacitance, pressure, orlight, processes the input in CPU 22, and controls display device 20.

Touch panel 21 may be a touch sensor. The touch panel or the touchsensor is not essential as a configuration element of display device 20.In a case where there is no touch panel or a touch sensor, displaydevice 20 cannot directly receive the operation from the user, but candisplay a logo or a symbol on wall surface 10 or use as lighting or thelike hidden on wall surface 10.

FIG. 3 is a schematic sectional view of information display device 1 ofthe embodiment. Information display device 1 includes surface member 11,reflection member (half mirror) 12, touch panel 21, and display panel23.

Surface member 11 is a member disposed on the surface of the wall in theaircraft cabin, and is a surface member that covers a part or theentirety of a wall, a floor, an armrest, and a table of a seat shell.The range in which the information is displayed through surface member11 is a range that is reached by the hand when the user is in operation,a range (including, for example, a bedside) reached by the line of sightfrom a passenger in order to deliver the information to the passenger,and further, a range reached by the line of sight from the crew (cabinattendant).

Surface member 11 is a material having a certain level of translucentproperties, and has a plate or film shape. A surface area of surfacemember 11 is configured to be larger than the display area of displaypanel 23. The material of surface member 11 is a material having thesame or similar surface to that of the material that covers the surfaceof wall surface 10. By embedding display panel 23 in wall surface 10 andcovering the display panel with surface member 11, information can bedisplayed on wall surface 10 without making user 13 aware of thepresence of display panel 23. Further, by making the surface area ofsurface member 11 larger than the display area of display panel 23,display region 1 a of display panel 23, that is, the border or outeredge of the display area of display panel 23 becomes difficult to bevisually recognized from the user. In addition, by covering the entirewall surface 10 with surface member 11, it is possible to completelyeliminate the seam around display panel 23.

Accordingly, user 13 can be made unaware of the presence of displaypanel 23. Surface member 11 is made of a genuine material such as wood,cloth, leather, stone, or the like, a film material simulating thegenuine material, or a transparent or translucent material of which asurface is decorated by painting or printing, and accordingly, it ispossible to display information without making the user feel thepresence of display panel 23 from the appearance.

Surface member 11 may be configured to partially have light transmittingproperties, not to transmit light to other area, and to display onlynecessary areas. For example, by providing a part having lighttransmitting properties in a specific symbol shape, a clearer symbol canbe displayed. The light transmittance of surface member 11 is, forexample, 8% to 15%. Since surface member 11 is configured to have such alight transmittance, the light transmitted from the front side to theback side of surface member 11 is suppressed such that display panel 23itself becomes invisible from the outside, and it is possible to makethe display by display device 20 sufficiently visually recognizable eventhrough surface member 11.

Surface member 11 may have a certain hard coating (not illustrated) onthe side opposite to the side (back side) where display panel 23 ispresent, that is, on the front side. The user frequently touches thefront side of surface member 11 for operation using touch panel 21. Inparticular, in a case where information display device 1 is used inequipment and the like in the aircraft, an unspecified number of peopleperform a touch operation. Accordingly, it is preferable that the hardcoating has a hardness of, for example, 2H (JIS standard) or higher.Thereby, damage can be prevented. The hard coating may be a thin layerto keep the feeling of surface member 11. The hard coating has athickness of, for example, 5 to 20 μm.

Reflection member 12 is a material such as a half mirror, and has acharacteristic of reflecting external light but transmitting light fromdisplay panel 23 on the inside. By inserting reflection member 12between surface member 11 and display panel 23, the boundary betweenwall surface 10 and the display region can be made more difficult to beseen. While the presence of display panel 23 itself is prevented frombeing seen through surface member 11 by the external light reflectioncharacteristic of reflection member 12, the display contents of displaypanel 23 can be presented to the user by the characteristic oftransmitting the light of reflection member 12.

In addition, when surface member 11 has a sufficient external lightreflection characteristic and a light transmission characteristic of theinternal light source emitted from display panel 23, reflection member12 may be omitted.

Surface member 11 and reflection member 12 may be formed of an insulatorsuch that touch panel 21 can be operable. In this case, the sheetresistance is preferably higher. This is because, when there is nosufficient resistance value, false recognition or the like of a touchdetection position on touch panel 21 is induced. In order tosufficiently ensure the performance of touch panel 21, it is preferablethat surface member 11 and reflection member 12 have a sheet resistancevalue of, for example, 30 megaohms or more.

Reflection member 12 may be formed by a metal vapor-deposited film thatcan transmit electromagnetic waves or a film that can produce a metallicluster by laminating a resin material. In this case, an indium-depositedfilm, a film formed by laminating a PET material, or the like ispreferable. Accordingly, it becomes easy to ensure both the performanceof touch panel 21 and to hide display panel 23.

Display device 20 may have functions, such as wireless charging, nearfield communication (NFC), and lighting, behind wall surface 10 insteadof touch panel 21 or in addition to touch panel 21. With such aconfiguration, it is possible to expect an effect of enhancingconvenience for the user or the maintenance person, and enhancing apresentation effect of displaying information.

Display panel 23 is, for example, a liquid crystal display. Displaypanel 23 includes a color filter, a liquid crystal panel, and a lightsource such as an LED (any of these is not illustrated). A display imageincluding predetermined information, the color of background, or apattern is displayed to be visible on surface member 11 by light BL froma light source such as an LED. Display panel 23 may be either anon-light-emitting display having a light source or a light-emittingdisplay. As display panel 23, an OLED display, a matrix LED display, orother display devices provided with other light sources may be used.

Display panel 23 is adjusted such that the screen luminance aftertransmission through surface member 11 is 200 cd/m{circumflex over ( )}2or less when the display panel is turned on. Accordingly, from the frontside of surface member 11, while display panel 23 itself becomesinvisible from the outside, it is possible to make the display bydisplay panel 23 sufficiently visually recognizable even through surfacemember 11, and to prevent the display panel from being overly dazzled.

Display panel 23 is adjusted such that the screen luminance is 800cd/m{circumflex over ( )}2 or more when the display panel is turned on.Accordingly, from the front side of surface member 11, while displaypanel 23 itself becomes invisible from the outside, it is possible tomake the display by display panel 23 sufficiently visually recognizableeven through surface member 11.

1-2. Behavior

When the power of information display device 1 is turned on, displaypanel 23 is illuminated to display information on the display surface.At this time, only the information displayed on the display surface isvisible to the user through surface member 11. Meanwhile, when the powerof information display device 1 is turned off, display panel 23 isturned off. At this time, display panel 23 becomes hardly seen from theuser through surface member 11, that is, invisible. In addition, evenwhen the power of information display device 1 is turned on and displaypanel 23 is illuminated, a area (background color area) of the displayon which information is not displayed becomes hardly seen from the uservia surface member 11, that is, invisible.

In a case where information display device 1 is used in an aircraft, asthe information or the contents of the operation presented to user 13(for example, a passenger or a crew), for example, transit information,seat lighting control, audio control, and DO NOT DISTURB setting,entertainment equipment control, seat reclining, attendant call andcancellation thereof, weather information, information on flight time orlocal time, presentation of seat number, display of lavatoryavailability, seat belt sign, door mode state display, and the like canbe considered. Further, a function to turn off or to adjust brightnessof the display of wall surface 10.

Accordingly, in a narrow space such as a space around a seat in theaircraft, the user can be provided with a control unit such as seatreclining, air conditioning, and lighting while maintaining a simple andhigh-quality design in which there is no prominent display terminal oroperation terminal. A controller having multiple functions or a functionas a terminal for displaying information can be imparted to the wallhaving a designability.

In addition, since there are no physical buttons on the wall surface,when considering a usage by many and unspecified users, there is no casewhere malfunction is caused by spilling liquids such as juice, and it ispossible to easily clean up since there is no unevenness.

Further, since an operation screen or information is displayed on wallsurface 10 that appears to be empty for user 13 as necessary, it ispossible to give user 13 a surprise. In particular, by expressingcombination with surface member 11, for example, it is possible to makethe wood look protruded, or to make it look as if there are an objectthat is not actually present or an imaginary object on the wall, and aspatial presentation for user 13 is also possible.

1-3. Characteristics

In information display device 1 according to the embodiment, surfacemember 11 having a designability and light transmitting properties isdisposed in front of display panel 23, and surface member 11 covers theentire wall surface 10 or at least a surface larger than display panel23. When using information display device 1 according to the embodiment,it is possible to realize a seamless design having no seam between wallsurface 10 and the information display region. Accordingly, it ispossible to provide a user with an information display device in whichcharacters, images, and the like appear on wall surface 10 and throughwhich the user can perform an action such as an operation.

In addition, when the design permits, there may be a boundary betweensurface member 11 that covers display panel 23 and the other part ofwall surface 10. In this manner, it is possible to simply performremoval from the viewpoint of maintenance properties and the like.

Information display device 1 according to the embodiment can also havethe following configuration.

Modification Example 1-1

FIG. 4 illustrates a usage environment of information display device 1according to the modification example.

In the usage environment according to the modification example,information display device 1 is disposed on seat 101. Informationdisplay device 1 according to the modification example is installed inthe vicinity of the periphery of seat monitor 26 and displaysinformation at a position that can be seen from user 13 (for example, apassenger) without largely moving the line of sight from seat monitor26. Accordingly, it is possible to realize an information display devicewhich is easy to use and capable of minimizing the operation of the lineof sight and neck of user 13. The basic operation of information displaydevice 1 according to the modification example is the same as that ofthe Embodiment 1 described above.

FIG. 5 is a configuration view of a system for operating informationdisplay device 1 according to the modification example. CPU 22 controldisplay panel 23 disposed around seat monitor 26 to display necessary oruseful information for the user based on the information from in-flightserver 2. For example, the information includes a fasten seat belt sign,information on the availability of lavatory, information on flight time,and the like.

With the above-described operation, in the modification example, itbecomes possible to present an operation screen at a position that iseasily seen from user 13, to make the operator aware, or to realize aninformation display device that is more easily used.

Modification Example 1-2

FIG. 6 illustrates a usage environment of information display device 1according to the modification example.

In the usage environment according to the modification example,information display device 1 is disposed on ceiling 61. Informationdisplay device 1 is installed on a ceiling of a cabin or ceiling 61 of aseat compartment, and can display a starry sky as if user 13 is under anoutdoor sky, or can display an advertisement. Accordingly, it ispossible to realize an information display device that can alleviate thepsychological tension and the like that user 13 receives in a narrowspace in the cabin, and can effectively provide an advertisement. Thebasic operation of the information display device according to theembodiment is the same as that of Embodiment 1.

FIG. 7 is a configuration view of a system for operating informationdisplay device 1 according to the modification example. CPU 22 displaysa night sky or blue sky video or an advertisement on the ceiling ondisplay panel 23 based on information from in-flight server 2. Dependingon the information to be displayed, connection to in-flight server 2 maynot be required.

With the above-described operation, in the modification example, itbecomes possible to realize an information display device thatalleviates the tension of the user and gives the user a surprise.

FIG. 8 is a schematic sectional view of information display device 1according to the modification example. The information display deviceincludes surface member 11, reflection member (half mirror) 12, anddisplay panel 23, and does not include a touch panel since no touchscreen operation is required.

Modification Example 1-3

FIG. 9 illustrates a usage environment of information display device 1according to the modification example.

In the usage environment according to the modification example,information display device 1 displays information mainly for crew 93such as a cabin attendant, which is disposed on wall surface 94 of acabin wall of the seat compartment. Information display device 1according to the modification example can display a sign at a positionthat can be seen by crew 93 from a passage or via a camera image.Accordingly, as described in the related art, without interfering withthe sense of luxury by disposing a display for displaying or a lamp on apassage, a wall, or a ceiling in the cabin, it is possible to reduce theload on crew 93 or to improve service for the passengers. The basicoperation of the information display device according to the embodimentis the same as that of Embodiment 1.

The wall surface 94 may be a floor, a ceiling, or a wall surface of adoor of a seat compartment.

FIG. 10 is a configuration view of a system for operating informationdisplay device 1 according to the modification example. CPU 22 displaysan attendant call, a DON'T DISTURB sign, a seat number, and the like ondisplay panel 23 based on information from in-flight server 2. Dependingon the information to be displayed, connection to the in-flight servermay not be required.

By the above-described operation, in the modification example, it ispossible to realize an information display device that can reduce theworkload on the crews 93 or improve the service for the passengerswithout interfering with the sense of luxury.

As one of usages of information display device 1 according to themodification example, the passenger name and the seat number may bedisplayed at the seat compartment entrance at the time of boarding andthe like, and the seat number and the passenger name may not bedisplayed at other times. Accordingly, while improving the convenienceof the passengers when boarding, the original decorative wall surfacecan be used without displaying the seat number or the passenger name atother times. As a result, it is possible to maintain a sense of luxuryas a space while considering the privacy of passengers.

FIG. 11 is a schematic sectional view of information display device 1according to the modification example. Information display device 1includes surface member 11, reflection member (half mirror) 12, touchpanel 21, and display panel 23, and each member is the same as those inEmbodiment 1. Further, similar to Embodiment 1, information displaydevice 1 may not include reflection member 12 and/or touch panel 21.

Modification Example 1-4

FIG. 12 illustrates a usage environment of information display device 1according to the modification example.

In the usage environment according to the modification example,information display device 1 is disposed on a wall surface of a workarea of crew 93, such as a galley in an aircraft, or on door surface 122of a container. Information display device 1 can display information ata position where crew 93 can see the information while working. Untilnow, it was necessary for crew 93 to confirm requests, orders, and thelike from each seat using an information terminal (not illustrated) nearthe door. However, according to information display device 1 accordingto modification example, crew 93 can grasp requests from each seat andinput a response status while performing the work of serving andpreparing, and can improve work efficiency. Furthermore, an informationdisplay device can be realized without deteriorating the sense of luxuryof the galley used as a sales space these days. The basic operation ofthe information display device according to the embodiment is the sameas that of Embodiment 1.

Door surface 122 may be a wagon door or a wall surface which aredisposed on a floor, a ceiling, or a galley.

FIG. 13 is a configuration view of a system for operating informationdisplay device 1 according to the modification example. CPU 22 controlsdisplay, on display panel 23, the order of drinks, request for blankets,and the like from the passenger, call information, status of the request(response history), and the like, with the accompanying seat number, andthe like, based on the information from in-flight server 2. Crew 93 canoperate touch panel 21 to input necessary information. Depending on theinformation to be displayed, connection to the in-flight server may notbe required.

By the above-described operation, in the modification example, it ispossible to realize an information display device capable of reducingthe work load on crew 93 or improving the service for the passengerswithout interfering with the sense of luxury in the galley.

By forming information display device 1 according to the modificationexample to be thin, it is possible to make effective use of the space ofthe container.

FIG. 14 is a schematic sectional view of information display device 1according to the modification example. Information display device 1includes surface member 11, reflection member (half mirror) 12, touchpanel 21, and display panel 23, and each member is the same as those inEmbodiment 1. Further, similar to Embodiment 1, information displaydevice 1 may not include reflection member 12 and/or touch panel 21.

Surface member 11 can be formed of a waterproof material. Accordingly,it is possible to realize a convenient information display device thatcan be safely operated even in a case of using water in the work area ofcrew 93.

Modification Example 1-5

FIG. 15 illustrates a usage environment of information display device 1according to the modification example.

In the usage environment according to the modification example,information display device 1 is disposed, for example, on seat 101 orthe wall of the seat compartment. Information display device 1 isdisposed at a position that is difficult to be seen or invisible to athird party (other passenger or crew and the like), such as a lavatoryavailability sign. Although seat 101 or the wall of the seat compartmentis a wall that usually give a sense of luxury, the availability of thelavatory is displayed such that only user 13 can understand in a casewhere a desire for excretion is felt. There are many cases where thedisplay sign indicating the vacancy of the lavatory is installed on theupper area of the wall in the related art, but by installing informationdisplay device 1 at a place where the line of sight easily reaches inseat 101 or the compartment, user 13 can understand the state of thelavatory without greatly moving the line of sight or the neck, and aneffect of enhancing convenience of the user is expected. In addition,when the availability of the lavatory is constantly displayed, the senseof luxury or designability deteriorates, but information display device1 according to the modification example does not make the user feel thepresence of the device while the device is unnecessary and theinformation can be seen only to the user regarding the contents that arenot known to a third party such as other passengers.

FIG. 16 is a configuration view of a system for operating informationdisplay device 1 according to the modification example. CPU 22 controldisplay panel 23 to display the availability of the lavatory and thelike based on the information from in-flight server 2. Depending on theinformation to be displayed, connection to the in-flight server may notbe required.

2. Embodiment 2

In the embodiment illustrated in FIG. 17, information display device 1Bincluding surface member 11 and display device 20 has an attachmentfeature to cabin structure (wall, door, monument and the like) 100.

Information display device 1B is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1B having the same configuration and function as those ofthe above-described embodiment will be omitted, and the same referencenumerals will be given to the same configuration members.

The attachment feature includes a structural body 100 a, and structuralbody 100 a has retainers 105 a and 105 b. Structural body 100 a isattached to the back side of surface member 11 at a position that doesnot overlap the display area of display panel 23. Retainers 105 a and105 b are provided on the back side and/or the side portion ofstructural body 100 a or surface member 11 at positions that areinvisible from the front side of surface member 11, and retaininformation display device 1B to structure 100. Lockers 105 a and 105 band/or other locations are fixed with screws 106 and the like.

Retainers are preferably provided on at least one side, and morepreferably provided on a plurality of sides in different directionssimilar to retainers 105 a and 105 b illustrated in FIG. 17.

At least surface member 11 side of structural body 100 a is colored withsubstantially the same color (for example, black) as the backgroundcolor of the display surface when display panel 23 is turned off orturned on. Accordingly, it is possible to prevent the boundary betweenstructural body 100 a and display panel 23 from being seen throughsurface member 11.

Information display device 1B can be configured to be easily detachedfrom and attached to structure 100, and an information display devicethat is easy to maintain can be realized. For example, a configurationin which the fixing on retainer 105 b side among retainers illustratedin FIG. 17 is released and information display device 1B is attached ordetached by rotating information display device 1B with retainer 105 aas a fulcrum can also be employed.

3. Embodiment 3

Information display device 1C according to the embodiment illustrated inFIG. 18 has a configuration in which an integrated unit of a film havinga designability and light transmitting properties and a transparentfixing plate on the front side of display panel 23 is pressed. With sucha configuration, it is possible to display and operate information asnecessary while realizing a seamless design, and to make systemmaintenance easy.

Information display device 1C is used in any usage environment similarto those of the above-described embodiments. The description ofinformation display device 1C having the same configuration and functionas those of the above-described embodiments will be omitted, and thesame reference numerals will be given to the same configuration members.

FIG. 18 is a schematic sectional view of information display device 1Cof the embodiment. Information display device 1C includes surface member11, reflection member (half mirror) 12, transparent member 53,structural body 54, touch panel 21, display panel 23, and housing 57. Inorder to sufficiently exhibit the effect of hiding the presence ofdisplay panel 23 and the effect of reflection member 12 for transmittingthe contents displayed by display panel 23 and displaying the contentson surface member 11, it is preferable that reflection member 12 isdisposed at a position close to surface member 11. This is because, whenthere is a gap between reflection member 12 and surface member 11, thereis a possibility that the light from display panel 23 transmittedthrough reflection member is diffused and displayed on surface member 11with blur. However, in a case where the requirement for display qualityis not so high, the positions of reflection member 12 and transparentmember 53 may be reversed. As long as the function as the informationdisplay device is satisfied, the order of the disposition may be anyorder.

Surface member 11 may not have a surface area larger than that ofdisplay panel 23.

Transparent member 53 is a plate having a certain hardness. Transparentmember 53 is preferably as thin as possible in order to reduce the blurof the display on surface member 11, for example, approximately 0.4 mmto 2.0 mm and more preferably approximately 1.5 mm to 2.0 mm.

In order to make touch panel 21 operable, it is preferable that surfacemember 11 and reflection member 12 are formed by an insulator similar toEmbodiment 1. Further, for the same reason, it is preferable thattransparent member 53 is also similarly an insulator and has a sheetresistance value of 30 megaohms or more.

The height of structural body 54 is preferably formed such that space 55is as small as possible. This is because, by shortening the distancebetween display panel 23 and reflection member 12 and surface member 11,diffusion of light can be suppressed, and the blur of display on surfacemember 11 can be minimized. Space 55 is preferably as small as possible.Preferably, a state where touch panel 21 is press fitted againsttransparent member 53 without any gap, for example, a state of 0 mm or astate close thereto is preferable.

Housing 57 is fixed to structural body 54 by fixing units such asscrews. By fixing transparent member 53 to structural body 54, surfacemember 11 and reflection member 12 can be installed on the displaysurface side of display panel 23. Accordingly, information displaydevice 1C can be configured without directly pasting surface member 11or reflection member 12 to touch panel 21 or display panel 23. However,in a case where surface member 11 or reflection member 12 alone hassufficient strength, transparent member 53 can be omitted.

With the above-described configuration, information display device 1Caccording to the embodiment can be disposed without making the user feelthe position and the presence of display panel 23. Further, ininformation display device 1C, surface member 11, reflection member 12,and transparent member 53 can be collectively detached from structuralbody 54. Accordingly, without taking off the entire wall on whichinformation display device 1C is attached, only display panel 23 ortouch panel 21 can be detached, and display 56 can be easily accessedand can be repaired or replaced. Further, after the repair or thereplacement of information display device 1C, surface member 11,reflection member 12, and transparent member 53 can be reused.

4. Embodiment 4

In information display device 1D according to the embodiment, at leastthe front surface of structural body 54 and/or a region (a region thatsurrounds the display surface) other than the display surface of displaypanel 23 between display panel 23 and surface member 11, have a coloredlayer colored with substantially the same color (for example, black) asthe background color of the display surface when display panel 23 isturned off or turned on. Hereinafter, examples of such a colored layerwill be specifically described.

Information display device 1D is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1D having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

Information display device 1D according to the embodiment is differentfrom Embodiment 3 in that mask print layer 83 (an example of the coloredlayer) is provided at least a part other than the display surface ofdisplay panel 23. With this configuration, it is possible to preventsee-through of a part having no display panel 23, and when viewed fromthe front surface side of surface member 11, the display surface ofdisplay panel 23 and other regions are made the same, it is possible tomake it difficult to see display panel 23.

FIG. 19 is a schematic sectional view of information display device 1Dof the embodiment. Information display device 1D includes surface member11, reflection member (half mirror) 12, transparent member 53, masklayer 83, structural body 54, touch panel 21, display panel 23, andhousing 57. The function of information display device 1D is satisfiedeven when reflection member 12 is disposed between transparent member 53and mask layer 83.

Housing 57 is fixed to structural body 54 by fixing units such asscrews. By fixing transparent member 53 to structural body 54, surfacemember 11 or reflection member 12 can be installed on the displaysurface side of display panel 23. Accordingly, information displaydevice 1C can be configured without directly pasting surface member 11or reflection member 12 to touch panel 21 or display panel 23. However,in a case where such a configuration is employed, while the region wheredisplay panel 23 is located transmits light, the region where structuralbody 54 is located does not transmit light on the surface of surfacemember 11, and accordingly, the boundary part between display panel 23and structural body 54 is visible. In order to prevent this, in theembodiment, mask layer 83 is disposed at the boundary part.

Mask layer 83 is disposed so as to surround the display surface ofdisplay panel 23. Mask layer 83 is preferably colored with substantiallythe same color as the background color of a region other than the regionthat displays the information, which is a display surface of displaypanel 23 when display panel 23 is turned off or when display panel 23 isturned on. Accordingly, the boundary between display panel 23 andstructural body 54 can be made prominent through surface member 11.

The region where mask layer 83 is provided is preferably provided notonly on structural body 54 but also on a region excluding the region ofthe display surface where display panel 23 displays information. Inparticular, the part having no mask layer 83 may be smaller than theentire region of display panel 23 such that the region where mask layer83 is provided covers the edge of display panel 23. By doing so, it canbe difficult to understand the difference in appearance between displaypanel 23 and the other regions when wall surface 10 (FIG. 1) viewed fromuser 13 is viewed, that is, when the wall surface is viewed from thefront side of surface member 11.

With the above-described configuration, it is possible to realize aninformation display device that does not make the user feel the positionand the presence of the display panel.

Modification Example 4-1

As illustrated in FIG. 20, information display device 1D-1 (FIG. 19)according to Embodiment 4 may be configured such that the corners ofinner edge 83 b of mask layer 83 that surrounds display surface 231 ofdisplay panel 23 are formed in an arc shape. Alternatively oradditionally, mask layer 83 may be colored by applying a gradation fromouter edge 83 a to inner edge 83 b.

Accordingly, in a case of viewed from the front surface side of surfacemember 11, the difference in appearance between the part where displaypanel 23 is located and the other part can be made more difficult tounderstand.

In the modification example, when user 13 sees from surface member 11,the part where mask layer 83 is not installed is formed in a polygonalshape with rounded corners, or a circular or elliptical shape. Displaypanel 23 is usually rectangular, and its four corners are almost rightangles. However, when the display surface is rectangular due to adifference in appearance when viewed from the front surface side ofsurface member 11, user 13 inevitably feels that there is a display onthe rear surface. Here, the part where mask layer 83 is not installed isformed into a polygonal shape with rounded corners, or a circular orelliptical shape such that user 13 cannot see the rectangular shape onthe display surface. Accordingly, user 13 does not recognize thatdisplay panel 23 is behind wall surface 10. Therefore, only thedisplayed information appears to emerge from wall surface 10, and user13 can be given a fresh surprise.

Furthermore, mask layer 83 may be colored by applying a gradation fromouter edge 83 a illustrated in FIG. 20 to inner edge 83 b. In this case,by gradually fading the color toward display surface 231, that is,inward, that is, by increasing the light transmittance, at the boundarypart between mask layer 83 and display surface 231 of display panel 23,the difference in appearance between display surface 231 and the otherparts when viewed from the front surface side of surface member 11becomes more difficult to understand. Accordingly, it is possible torealize a configuration that does not make user 13 aware of the presenceof display panel 23.

Modification Example 4-2

FIG. 21 illustrates a modification example of information display device1D attached by the structural body. FIG. 21 is a schematic sectionalview of information display device 1D-2 according to the modificationexample. Information display device 1D-2 includes surface member 11,transparent member 82, mask layer 83, structural body 54, reflectionlayer (half mirror) 85, touch panel 21, display panel 23, and housing57.

The thickness from surface member 11 to reflection layer 85 ispreferably as thin as possible in order to minimize the blur of thedisplay on surface member 11. The thickness is, for example,approximately 0.4 mm to 2.0 mm, preferably approximately 1.5 mm to 2.0mm.

In order to make touch panel 21 operable, it is preferable that surfacemember 11, transparent member 82, and reflection layer 85 are formed byan insulator similar to Embodiment 1.

In a case where reflection layer 85 is disposed in a region that doesnot overlap structural body 54 as in the modification example,transparent surface member 11 has a different appearance when viewedfrom the front surface side by an object on the lower layer, that is, onthe back side. Since information display device 1D-2 includes reflectionlayer 85, the information displayed on display panel 23 is displayed onsurface member 11 while hiding the presence of display panel 23.However, the appearance when viewed from the front surface differsbetween the place where reflection layer 85 is located under surfacemember 11 and the other places. Here, in the modification example, bycoloring mask layer 83, for example, white or gray, the appearance ofwall surface 10 (FIG. 1) seen from user 13 and the appearance of displayregion 1 a (FIG. 1) are prevented from becoming different from eachother. The color of mask layer 83 is changed in accordance with thespecifications of surface member 11, the luminance of the environment,the color of structural body 54, and the like. In a case of white orgray, an effect can be expected in which the color of a certain place ofreflection layer 85 looks similar to other places.

5. Embodiment 5

As illustrated in FIG. 22, in information display device 1E according tothe embodiment, slight-adhesive layer 32 that can be peeled off again isdisposed in front of display panel 23, and surface member 11 having adesignability and light transmitting properties is disposed on the frontside. Information display device 1E according to the embodiment reducesthe blur on the display while realizing a seamless design having no seambetween the wall surface and the information display region, andprovides a comfortable operation feeling without an air gap in front ofthe touch panel.

Information display device 1E is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1E having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

FIG. 22 is a schematic sectional view of information display device 1Eof the embodiment. Information display device 1E includes surface member11, slight-adhesive layer 32, reflection layer (half mirror) 33, touchpanel 21, display panel 23, structural body 54, and housing 57.Information display device 1E is fixed to structural body 54 withhousing 57, and structural body 54 is fixed to fixing member 38.Information display device 1E may not include reflection layer 33 and/ortouch panel 21 in accordance with the function.

Slight-adhesive layer 32 is a member such as a film having the lighttransmitting properties and having a weak or slight adhesiveness onwhich both surfaces or one of the surfaces can be peeled off again.Slight-adhesive layer 32 prevents a gap (air gap) between the lowermember (reflection layer 33 in the illustrated example, touch panel 21in a case where reflection layer 33 is not provided, and display panel23 in a case where touch panel 21 is not provided) and surface member11. With the configuration, the information displayed on display panel23 can be displayed on surface member 11 without the blur as much aspossible. In particular, in a case where information display device 1Eincludes touch panel 21, the operation feeling of touch panel 21deteriorates when the gap (air gap) is present. However, the presence ofslight-adhesive layer 32 can improve the operation feeling of touchpanel 21 and realize a user-friendly information display device.

Since slight-adhesive layer 32 can be peeled off again, when displaydevice 20 breaks down, only display device 20 can be detached from thewall without breaking surface member 11, and accordingly, it is possibleto make the maintenance easy. In the example of FIG. 22, display device20 can be detached from surface member 11 with housing 57 by removingfixing member 38 disposed on the rear surface of housing 57.Accordingly, display device 20 can be replaced or repaired withoutbreaking or damaging surface member 11.

The specific example here is merely an example, fixing member 38 may notbe provided on the rear surface, a fixing arm may be projected fromhousing 57, and the arm may be fixed to structural body 54. In thiscase, there are various fixing members, such as a method in which thereis an attaching screw on the side surface of housing 57, and afterfixing housing 57 to structural body 54 with the attaching screw,structural body 54, housing 57, and display device 20 are collectivelypressed against surface member 11 and fixed.

Slight-adhesive layer 32 may not have the light transmitting propertiesas long as the slight-adhesive layer has an area smaller than the areaof the display surface of display panel 23 and a shape that avoidsdisplay contents. However, when the area is equal to or larger than thearea of the display surface, the configuration that has the lighttransmitting properties and does not allow bubbles to enter ispreferable. Accordingly, it is possible to prevent the informationdisplayed on surface member 11 from blurring, and to realize aninformation display device which sharply displays information and iseasily used by the user.

Furthermore, slight-adhesive layer 32 may be formed by imparting aslight adhesive to the surface of a lower layer member (reflection layer33 in the illustrated example, and touch panel 21 in a case where thereis no reflection layer 33). Otherwise, the slight adhesive may beimparted only to the front side of slight-adhesive layer 32, that is,only to surface member 11 side. However, as described above, byrealizing a sheet on which a slight adhesive is imparted on bothsurfaces of the film having the light transmitting properties, in a casewhere there is damage or intrusion of dust due to peeling during themaintenance, it is possible to replace display device 20 only byreplacing the sheet.

Reflection layer 33 is a material such as a half mirror, and reflectsthe external light, but transmits light from display panel 23 on theinside. By disposing reflection layer 33 between surface member 11 anddisplay panel 23, the boundary between wall surface 10 and displayregion 1 a can be made more difficult to understand as illustrated inFIG. 1. While the presence of display panel 23 itself is prevented frombeing seen through surface member 11 by the external light reflectioncharacteristic of reflection layer 33, the display contents of displaypanel 23 can be presented to the user by the light transmissioncharacteristic.

In addition, when surface member 11 has the sufficient external lightreflection characteristic and the light transmission characteristics ofthe internal light source emitted from display panel 23, reflectionlayer 33 may be omitted.

Surface member 11, slight-adhesive layer 32, and reflection layer 33 areinsulators such that touch panel 21 can operate, and preferably have ahigher insulation resistance value.

Reflection layer 33 may be formed by a metal vapor-deposited film thatcan transmit electromagnetic waves or a film that can produce a metallicluster by laminating a resin material. In particular, an indium ortin-deposited film, a film formed by laminating a PET material, or thelike is preferable. Accordingly, it becomes easy to ensure both theperformance of touch panel 21 and to hide display panel 23.

Fixing member 38 is a sheet metal, a plastic component, or the like, andhas a function of pressing display device 20 against surface member 11.Since slight-adhesive layer 32 or the weak-adhesive layer itself doesnot have a bonding force enough to fix display device 20 to surfacemember 11, the layers are used as a unit that further pressesslight-adhesive layer 32 against surface member 11. Fixing member 38 maybe a plate material such as a sheet metal or a plastic component.Further, the same effect can be obtained even when the arm is projectedfrom housing 57 and fixed to structural body 54. Furthermore, aconfiguration in which display device 20 is pressed against surfacemember 11 by assembling with structural body 54 in a state of beingattached to a fixed component (not illustrated) by a screw hole (notillustrated) provided on the side surface of housing 57, can also berealized.

In information display device 1E, the following effects can be obtainedby disposing surface member 11, slight-adhesive layer 32, reflectionlayer 33, touch panel 21, and display panel 23 in this order. Since theplace where reflection layer 33 is required is limited to the front ofdisplay panel 23, the cost can be reduced by placing reflection layer 33only in the place where reflection layer 33 is required, and the rangethat can be repaired by maintenance can be expanded. However, in orderto sufficiently exhibit the effect of making display panel 23 invisiblefrom the outside and the effect of transmitting the contents displayedon display panel 23 and displaying the contents on surface member 11,which are the effects of reflection layer 33, it is preferable thatreflection layer 33 is disposed at a position close to surface member11. This is because, when there is a gap between reflection layer 33 andsurface member 11, there is a possibility that the light transmittedthrough reflection layer 33 from display panel 23 is diffused anddisplayed on surface member 11 with blur. In other words, the positionof reflection layer 33 and the position of slight-adhesive layer 32 maybe in the order illustrated in FIG. 22 or in the order reverse thereto,depending on whether the priority is given to display qualityrequirements or cost or maintenance.

Furthermore, in information display device 1E, since slight-adhesivelayer 32 can be peeled off again, surface member 11 and display device20 can be separated from each other in terms of maintenance.Accordingly, maintenance work can be performed efficiently.

Modification Example 5-1

As illustrated in FIG. 23, information display device 1E-1 according tothe modification example is different from that of Embodiment 5described above in that slight-adhesive layer 32 that can be peeled offagain is adhered to front of display panel 23, and surface member 11having a designability and light transmitting properties and base member60 having light transmitting properties are integrated with each otheron the front surface, that is, on the surface side. In informationdisplay device 1E-1, in addition to the effect similar to that ofEmbodiment 5 described above, surface member 11 cannot be damaged duringthe maintenance, and further, display device 20 can be attachedregardless of the surface state of surface member 11.

In Embodiment 5 described above, in a case where surface member 11 ismade of a brittle material such as cloth, for example, there is a casewhere surface member 11 is damaged even by the adhesive force ofalight-adhesive layer 32, or there is a case where the adhesive effectof slight-adhesive layer 32 is not exhibited depending on the surfacestate where there is the unevenness on the rear surface of surfacemember 11 by the method of weak adhesion, such as the adhesion by staticelectricity. Therefore, by inserting base member 60 between surfacemember 11 and slight-adhesive layer 32, damage to surface member 11 byslight-adhesive layer 32 can be reduced, and the effect ofslight-adhesive layer 32 can be maintained.

Base member 60 is a thin plate-like member having the light transmittingproperties. Base member 60 may be fixed to surface member 11 byproviding an adhesive layer (not illustrated) only on surface member 11side so as to remain on structural body 54 side together with surfacemember 11 when display device 20 is detached. Otherwise, base member 60may be fixed by being sandwiched between surface member 11 andstructural body 54. Base member 60 has, for example, a smooth flatsurface or a surface state that allows the bubbles to escape easily suchthat slight-adhesive layer 32 functions effectively.

Base member 60 is preferably as thin as possible in order to reduce theblur of the display on surface member 11, for example, approximately 0.4mm to 1 mm, preferably 1.5 mm to 2.0 mm. In order to make touch panel 21operable, it is preferable that surface member 11, slight-adhesive layer32, and reflection layer 33 are formed by an insulator similar toEmbodiment 5 described above. Further, for the same reason, it ispreferable that base member 60 is also similarly an insulator and has asheet resistance value of 30 megaohms or more.

Base member 60 may be formed by providing a region that performs maskprinting and partially has no light transmitting properties, or bycreating the base member with a material having no light transmittingproperties and by partially providing a through-hole or a thinned partto allow light transmission. Accordingly, display region 1 a (FIG. 1)can be limited without processing surface member 11, and leakage ortransmission of extra light due to the backlight and the like of displaypanel 23 can be prevented. In this method, for example, by providing agradation, it is also possible to make it difficult to understand theboundary between the place where the reflection layer is provided on therear surface of surface member 11 and the place where the reflectionlayer is not provided. The function is performed as long as the size ofbase member 60 is larger than slight-adhesive layer 32, but from theabove-describe viewpoint, it is preferable that base member 60 has asurface area at least equal to or larger than the display surface ofdisplay panel 23. Although base member 60 can be configured even on theentire surface of wall surface 10 (FIG. 1), the addition of an extraconfiguration leads to an increase in cost, and accordingly, it ispreferable that the area of base member 60 slightly exceeds not theentire surface of the wall surface with design but the surface area ofthe display surface of display panel 23. Furthermore, in addition to thepurpose of making display panel 23 invisible through surface member 11,display panel 23 can also add expression in a video displayed fromdisplay panel 23 for various applications by providing unevenness on thesurface of base member 60 or providing optically refracted location.

The same effect as described above can be expected even when a masklayer is provided between touch panel 21 and the surface of displaypanel 23. However, since the layer is a part that changes depending onthe usage environment and usage method of information display device1E-1, it is considered that it is efficient to perform mask printing onbase member 60 in consideration of not having to process surface member11.

Information display device 1E-1 may not have to provide slight-adhesivelayer 32 or reflection layer 33 by providing a reflective material or aslight adhesive on the front side of base member 60. Accordingly, thenumber of configuration members can be reduced, the distance betweensurface member 11 and display panel 23 can be reduced, and the displayon display panel 23 can be expressed more sharply. However, it ispreferable to separately provide slight-adhesive layer 32 and reflectionlayer 33 from the viewpoint of ease of repair when display device 20 isremoved from surface member 11 for maintenance as described above.

In information display device 1E-1, the following effects can beobtained by disposing surface member 11, base member 60, slight-adhesivelayer 32, reflection layer 33, touch panel 21, and display panel 23 inthis order. Similar to Embodiment 5 described above, the position ofreflection layer 33 may be between surface member 11 and base member 60or between base member 60 and slight-adhesive layer 32, but it ispreferable that the members and the like are disposed in theabove-describe order from the viewpoint of ease of the maintenance.

In addition, information display device 1E-1 may not include reflectionlayer 33 or touch panel 21 for the same reason and condition as those inEmbodiment 5 described above.

With the above-described configuration, information display device 1Eand information display device 1E-1 according to Embodiment 5 and themodification examples thereof can be disposed without causing the userto feel the position and the presence of display panel 23 throughsurface member 11, and the information display with high designabilitycan be realized. Furthermore, information display devices 1E and 1E-1can be replaced by detaching only display device 20 without peeling offthe entire wall surface 10 (FIG. 1) at the equipment failure. Accordingto the configuration described in the embodiment, display device 20 canbe detached from structural body 54 without damaging surface member 11,and display device 20 can be brought into close contact with surfacemember 11 regardless of the surface state or material of surface member11. Further, a configuration in which the display region can be freelylimited without processing surface member 11 or display panel 23 can berealized.

6. Embodiment 6

As illustrated in FIG. 24, information display device 1F according tothe embodiment is different from those in the above-describedembodiments in that compressible cushion sheet 37 is disposed betweentouch panel 21 and surface member 11. With the configuration, a void(air gap) hardly occurs between touch panel 21 and surface member 11,and touch panel 21 can be reliably operated.

Information display device 1F is used in any usage environment similarto the above-described embodiments. The description of informationdisplay device 1F having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

FIG. 24 is a schematic sectional view of information display device 1Fof the embodiment. Information display device 1F includes surface member11, cushion sheet 37, touch panel 21, display panel 23, and housing 57.Display panel 23 is disposed so as not to be seen through surface member11. The components that configure information display device 1F do notnecessarily need to be assembled integrally. The components may bedisposed apart from each other or may be configured to be easilyseparated from each other. For example, cushion sheet 37 may beconfigured to be easily detachable from other components. Accordingly,in a case where cushion sheet 37 needs to be replaced due to aging orthe like, an effect that maintenance becomes easy is achieved.

The structural body 35 is an aluminum plate or the like for reinforcingsurface member 11. A case where surface member 11 has sufficientstrength may not be necessary.

Cushion sheet 37 has the light transmitting properties, and is disposedbetween touch panel 21 and surface member 11 to be compressible. Sincecushion sheet 37 is compressible, even in a case where surface member 11has some unevenness, cushion sheet 37 can be disposed without forming avoid between the front side of touch panel 21 and the back side ofsurface member 11. In general, it is known that the sensitivity of touchpanel 21 is extremely reduced by the air entering between the memberdisposed on the surface and touch panel 21 in touch panel 21 of acapacitive sensing method or a resistive membrane method. In theembodiment, the sensitivity of touch panel 21 can be reliably maintainedby not forming a void between touch panel 21 and surface member 11. Inaddition, cushion sheet 37 can prevent the video displayed on displaypanel 23 from being refracted due to the void and from being seen blur.

Cushion sheet 37 may be a member made of, for example, a gel materialsuch as silicon, polyurethane, or urethane. Cushion sheet 37 may beplastically deformed by compression by an external force or may beelastically deformed by an external force. In particular, the positionalrelationship between surface member 11 and cushion sheet 37 may bedisplaced when display device 20 is subjected to some vibration or theposition of fixing member 38 is displaced due to aging. Even in such acase, by using a material having elasticity as cushion sheet 37, a voidis hardly generated between the configuration components. Further,cushion sheet 37 can be easily reused.

Display device 20 is fixed to the back surface side of surface member 11by fixing member 38. In the embodiment, display device 20 is fixed bypressing housing 57 against surface member 11 side with fixing member38. However, the fixing method is an example, and any fixing method maybe used as long as display device 20 can be fixed to the back surfaceside of surface member 11.

FIG. 25 is an exploded sectional view of information display device 1Faccording to the embodiment. As illustrated in the drawing, in theembodiment, cushion sheet 37 has a larger area than touch panel 21 andis disposed so as to cover the entire touch surface. By making thesurface area of cushion sheet 37 larger than the display surface ofdisplay panel 23 or the operation region of touch panel 21, even in acase where there is a physical error in the position where cushion sheet37 is pasted, the display surface of display panel 23 can be reliablyoperated. However, the configuration is not essential, and cushion sheet37 may have the same area as that of touch panel 21 or may be disposedso as to cover a part of touch panel 21.

In information display device 1F, by disposing surface member 11,cushion sheet 37, touch panel 21, and display panel 23 in this order, avoid between surface member 11 and touch panel 21 can be prevented, andthe operation of touch panel 21 can be kept to be normal. In particular,there are a case where surface member 11 is a wall material and a casewhere there are some unevenness. In this case, a void is easily formedbetween surface member 11 and touch panel 21. However, due to thepresence of cushion sheet 37, such a void can be effectively prevented,and the operability of touch panel 21 can be maintained.

Modification Example 6-1

FIG. 26 illustrates information display device 1F-1 according to amodification example. As illustrated in the drawing, in informationdisplay device 1F-1, even in a case where surface member 11 isconfigured not in a flat shape but in a curved shape, cushion sheet 37having a sufficient thickness is disposed, and accordingly, followingsurface member 11, touch panel 21 can be reliably brought into anoperable state.

Modification Example 6-2

FIG. 27 illustrates information display device 1F-2 according to anothermodification example. As illustrated in the drawing, in informationdisplay device 1F-2, by disposing film 58 having an adhesive layerbetween surface member 11 and cushion sheet 37, the generation ofbubbles generated when cushion sheet 37 is in contact with surfacemember 11 is prevented. Accordingly, it is possible to prevent thegeneration of a void between touch panel 21 and surface member 11 and tomake touch panel 21 more reliably operable. Furthermore, display device20 can be easily separated from surface member 11.

FIG. 27 is a schematic sectional view of information display device 1F-2according to the modification example. Information display device 1F-2includes surface member 11, film 58, cushion sheet 37, touch panel 21,display panel 23, and housing 57. Display panel 23 is disposed so as notto be seen through surface member 11.

Information display device 1F-2 is different from those of theabove-described embodiments in that non-adhesive film 58 is disposedbetween surface member 11 and cushion sheet 37. Film 58 is made of, forexample, flame-retardant polycarbonate (PC), polyether terephthalate(PET) or fluoropolymer having a thickness of approximately 0.05 mm to0.1 mm. When the thickness of the film is extremely thick, there is apossibility that the elasticity of the film becomes too strong and it isnot possible to follow the unevenness of the front surface of surfacemember 11, and thus, a case where the thin film of the thickness is 0.05mm or the like can expect more effect.

In non-adhesive film 58, the surface of non-adhesive film 58 may beprocessed by cutting or finely cutting the most surface of the film.Accordingly, the processed surface of film 58 becomes easier to followthe unevenness of surface member 11, and the generation of voidtherebetween can be prevented.

Embossing or Texture (extremely fine unevenness) may be provided on theback side (display panel 23 side) of surface member 11. Accordingly, theeffect of eliminating the adhesiveness of the back surface of surfacemember 11 and suppressing the generation of bubbles between surfacemember 11 and cushion sheet 37 can be expected.

In information display device 1F-2, by disposing non-adhesive film 58between surface member 11 and cushion sheet 37, when display device 20including touch panel 21 breaks down, surface member 11 can be detachedwithout breaking, only display device 20 can be easily detached from thewall surface, and accordingly, the maintenance work can become easy.

Instead of non-adhesive film 58, a non-adhesive material is applied orpainted to the front side and/or back side of cushion sheet 37, or thefront side and/or the back side of cushion sheet 37 are processed tohave non-adhesiveness, and accordingly, a non-adhesive layer may beformed.

Otherwise, non-adhesive film 58 may be slight-adhesive film or otherslight adhesion layer.

Modification Example 6-3

FIG. 28 illustrates information display device 1F-3 according to anothermodification example. As illustrated in the drawing, information displaydevice 1F-3 may include weakly adhesive film 59 on the back side (touchpanel 21 side) of cushion sheet 37 in addition to the configurationillustrated in FIG. 29. With the configuration, cushion sheet 37 can bepeeled off from touch panel 21 again. Accordingly, even when cushionsheet 37 becomes dirty, torn, or deformed, only cushion sheet 37 can bedetached from information display device 1F-3 and replaced withoutbreaking touch panel 21. Thereby, the maintenance work can become easy.

Otherwise, weakly adhesive film 59 may be a non-adhesive film or anothernon-adhesive layer. The configuration can also make the maintenance workeasy.

7. Embodiment 7

As illustrated in FIG. 29, information display device 1G according tothe embodiment performs a decoration process such as painting orprinting on the front side and the back side of surface member 11 havingthe light transmitting properties, and accordingly, the adjustment ofthe light transmittance is possible without being affected by thepattern of the front surface of surface member 11, and an informationdisplay device with excellent appearance can be realized.

Information display device 1G is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1G having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

FIG. 29 is a schematic sectional view of information display device 1Gof the embodiment. Information display device 1G includes surface member11, cushion sheet 37, touch panel 21, display panel 23, and housing 57.An effect that the replacement during the maintenance becomes easy ascushion sheet 37 can be peeled off from display device 20.

Display device 20 is fixed to the back surface side of surface member 11by fixing member 38. In the embodiment, display device 20 is fixed byfixing housing 57 to the structural body 35 and pressing housing 57against surface member 11 side with fixing member 38. However, thefixing method is an example, and any fixing method may be used as longas display device 20 can be fixed to the back surface side of surfacemember 11.

Surface member 11 includes first layer 71 subjected to the decorationprocess, plate-like member 110, and second layer 72 for adjusting thelight transmittance. First layer 71 and second layer 72 are formed bydecorating the front side and the back side of plate-like member 110 bypainting or printing. For example, in the usage environment illustratedin FIG. 1, first layer 71, which is the front surface side directly seenfrom user 13, is decorated more precisely, such as printing or painting,which imitates a real material. However, when such decoration isperformed, it becomes difficult to control the light transmittance.Therefore, the side which is not directly visible from user 13, that is,the back side of surface member 11 is also decorated by painting orprinting. By providing the decorated layers on both surfaces in thismanner, the light transmittance passing through surface member 11 anddecorated first layer 71 and second layer can be controlled with a highdegree of freedom. For example, in a case where a light-colored woodpattern is printed on first layer 71 on the front surface side ofsurface member 11, the amount of light transmitted from the frontsurface side of the first layer to display device 20 side increases, andthere is a possibility that the shape of display panel 23 is seen fromthe user. Here, by painting second layer 72 on the back side of surfacemember 11 with a relatively dark color ink, the amount of transmittedlight can be adjusted to prevent display panel 23 from being seenthrough surface member 11. Further, since surface member 11 is atransparent or translucent material, by decorating both surfaces ofsurface member 11, the decorative expression seen from the front surfaceside can be deepened, and the authenticity can be further enhanced.

First layer 71 and/or second layer 72 may be made of a film. Secondlayer 72 having a light transmittance adjusting function may be formedby vapor deposition. Otherwise, the second layer may be formed bytranslucent solid printing. In this case, the printing may be performedby performing painting with black with a light transmittance of 40% to60%.

First layer 71 is disposed to be in close contact with a part or theentirety of the front side of plate-like member 110, and second layer 72is disposed to be in close contact with a part or the entirety of theback side of plate-like member 110.

The light transmittance of second layer 72 is preferably 40% to 60%.Otherwise, second layer 72 may be formed by a half mirror having a lighttransmittance of 40% to 70%. Alternatively, second layer 72 may beformed by an optical filter. In this case, for example, the opticalfilter is designed to transmit only light from display panel 23 andprevent transmission of external light.

The combined light transmittance of first layer 71 and second layer 72is preferably 8% to 15%.

Display panel 23 is preferably adjusted by CPU 22 (FIG. 1) such that theluminance on surface member 11 due to the light transmitted throughsurface member 11 is 200 cd/m{circumflex over ( )}2 or less. Preferably,display panel 23 is adjusted by CPU 22 (FIG. 1) such that the luminanceof the light source (not illustrated) at the time of being turned on is800 cd/m{circumflex over ( )}2 or more.

With the above-described configuration, information display device 1Gadjusts the amount of light transmission of surface member 11 to preventdisplay panel 23 from being seen through surface member 11, and to makethe information displayed on surface member 11 comfortably seen from theuser.

Modification Example 7-1

FIG. 30 illustrates information display device 1G-1 according to amodification example. In the example illustrated in FIG. 29, thedecorative layers are provided on the front side and the back side ofsurface member 11, but the method of realizing surface member 11 is notlimited thereto. For example, the surface member is formed by decorativefilm 40 having the light transmitting properties disposed on the surfaceof a transparent plate having a sufficient rigidity, and the same effectcan be obtained by performing the decoration process with respect to theboth surfaces of decorative film 40.

FIG. 30 is a schematic sectional view of information display device1G-1. Information display device 1G-1 includes decorative film 40 thatis a transparent or translucent film member, light-transmitting plate 42that is a plate-like member, cushion sheet 37, touch panel 21, displaypanel 23, and housing 57. Surface member 11 includes light-transmittingplate 42 for maintaining rigidity and decorative film 40 for realizingsurface decoration. Decorative film 40 includes first layer 71 andsecond layer 72. The decoration process is performed on the front sideof decorative film 40 to form first layer 71, and the decoration processis performed on the back side of decorative film 40 to form second layer72.

First layer 71 is disposed to be in close contact with a part or theentirety of the front side of decorative film 40. Second layer 72 isdisposed to be in close contact with a part or the entirety of the backside of decorative film 40. Decorative film 40 may be pasted tolight-transmitting plate 42 with an adhesive.

With the above-described configuration, information display device 1G-1can control the light transmittance and express the depth to thedecorative expression, similar to the example illustrated in FIG. 25.

8. Embodiment 8

FIG. 31 illustrates a usage environment of information display device 1Haccording to the embodiment.

In the usage environment in the embodiment, information display device1H is disposed on wall surface 10 in an aircraft or the like.Information display device 1H displays information displayed on thedisplay panel to be seen on display region 1 a by transmitting the lightof the display panel from the back side of surface member 11.

Information display device 1H is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1H having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

Information display device 1H according to the embodiment is differentfrom those in the above-described embodiments mainly in that reflectancevariable reflection layer (half mirror layer) 120 capable of partiallychanging the light transmittance and the reflectance is provided.Normally, by adding a reflection layer between surface member 11 anddisplay panel 23 of the information display device, appearance oftransparency on the surface decoration layer of surface member 11 can bereduced, and the images on display region 1 a can also be colored withan appropriate color. However, the reflection layer also reduces thelight from the light source (display panel 23 or another light source)inside display device 20. For example, when the reflectance of thereflection layer is 50%, the light transmittance is also 50%. Therefore,the light from display panel 23 to be displayed becomes darker, and theplace not to be displayed becomes bright and prominent. For example, ina case where a liquid crystal display is used, there is a case where thelight of the backlight is visible even on a dark screen.

In the embodiment, a reflection layer of which the light transmittanceor the reflectance can be partially changed is provided. In thereflection layer, the light transmittance of only the location desiredto be displayed from display panel 23 is increased, the lighttransmittance of the other locations (the locations where information isnot displayed) is reduced to increase the reflectance, and accordingly,an information display device of which the real feeling of thedecorative layer on surface member 11 is improved can be realized.

In addition, by increasing the light transmittance and lowering thereflectance for a certain region of the display, there is a case wherethe color of the background is different from the intended color of thesurface decoration layer, and the color of the background is picked upand darkened, but at this time, display panel 23 emits light thatcorrects the amount of darkness caused by the increase in thetransparency of the reflection layer with respect to the surfacedecoration layer, and accordingly, the unnaturalness can be eliminated.

Although display region 1 a in which the light transmittance can bechanged is expressed by a square in FIG. 31, the shape, the number, andthe size of display region 1 a are not limited.

FIG. 32 is a configuration view of a system for operating informationdisplay device 1H according to the embodiment. CPU 22 causes displaypanel 23 to display necessary or useful information for user 13 based onthe information from in-flight server 2. CPU determines a region wherethe reflectance or the light transmittance of reflectance variablereflection layer 120 is changed based on the information to be displayedon display panel 23 and the ambient light information from ambient lightsensor 28, which are acquired from in-flight server 2. CPU 22 alsocalculates the reflectance and/or the light transmittance based on theambient light information from ambient light sensor 28, and changes thereflectance or the light transmittance of reflectance variablereflection layer 120. In addition, in a case where ambient conditionscan be grasped without measuring, or in a case where ambient lightconditions may not be considered, an ambient light sensor may not beprovided. In this case, CPU 22 controls reflectance variable reflectionlayer 120 based on predetermined reference information (for example, theluminance of display panel 23).

FIG. 33 is a schematic sectional view of information display device 1Hof the embodiment. Information display device 1H includes surface member11, reflectance variable reflection layer (half mirror) 120, and displaypanel 23. Light from display panel 23 is transmitted through reflectancevariable reflection layer 120 and displays information on display region1 a of surface member 11.

Information display device 1H according to the embodiment can enhancethe effect of decoration such as a real feeling other than the locationon surface member 11 where information is displayed, and can improve thelight transmittance of the location where information is displayed ondisplay panel 23.

9. Embodiment 9

FIG. 34 illustrates a usage environment of information display device 1Iaccording to the embodiment.

In the usage environment in the embodiment, information display device1I is disposed on wall surface 10 in an aircraft or the like.Information display device 1 performs display such that user 13 can seethe display in display region 1 a by transmitting the light of thedisplay panel from the back side of surface member 11.

Information display device 1I is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1I having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

Information display device 1I is different from those of theabove-described embodiment in that reflection layer (half mirror layer)121 that can selectively transmit the light from display panel 23 isprovided. With such a configuration, the light from display panel 23 canbe selectively transmitted. Reflection layer 121 transmits only lightdesired to be displayed from display panel 23, does not transmit otherlight, and accordingly, it is possible to prevent unnecessary displayand light leakage, and to enhance the real feeling of the surfacedecoration layer of surface member 11.

FIG. 35 is a configuration view of a system for operating informationdisplay device 1I according to the embodiment. CPU 22 calculates thewavelength of light that is easily transmitted through reflection layer121 based on information from in-flight server 2, and causes displaypanel 23 to display the light. Reflection layer 121 that can selectivelytransmit the light may have a role of a filter that converts thewavelength of the light and transmits the light. By doing so, it isconsidered that the expression of colors with better color developmentbecomes possible.

FIG. 36 is a schematic sectional view of information display device 1Iof the embodiment. Information display device 1I includes surface member11, reflection layer (half mirror) 121 for selectively transmittinglight, and display panel 23, the light from display panel 23 istransmitted through reflection layer 121, and the information ispresented to the user through display region 1 a on surface member 11.

With the above-described configuration and operation, informationdisplay device 1I of the embodiment has an effect of reducing elementsthat deteriorate the real feeling at locations other than the locationswhere information is displayed by the light of the backlight of displaypanel 23 or the like. Furthermore, a location to be displayed on displaypanel 23 can be clearly displayed.

10. Embodiment 10

FIG. 37 illustrates a usage environment of information display device 1Jaccording to the embodiment.

In the usage environment in the embodiment, information display device1J is disposed on partition 41 which is a part of the interior of theaircraft. Partition 41 partitions a space in the aircraft, such as awall that separates the personal space of passengers from a passagewhere crews walk, and a wall of a shell seat. Partition 41 has surface41 a and surface 41 b opposite to surface 41 a. Information displaydevice 1J according to the embodiment is different from those of theabove-described embodiments mainly in that information display device 1Jis disposed so as to provide display regions 1 a and 1 b on bothsurfaces of partition 41.

Information display device 1J is used in any usage environment similarto those of the above-described embodiments as long as informationdisplay device 1J is a plate-like structure such as partition 41 and hasa structure that is open on both sides. For example, the structure isdisposed on a wall, a door of a container, or a seat disposed in anaircraft, that is, at a position visible from a passenger or a crew ofthe moving object. As illustrated in the example illustrated in FIG. 9,information display device 1J may be disposed on wall surface 94 of thecabin wall of the seat compartment, the information mainly toward crew93 such as a cabin crew may be displayed on the display surface on thepassage side of the wall surface 94, and the information toward thepassenger may be displayed on the display surface on the seat sideopposite to the wall surface 94. The description of information displaydevice 1J having the same configuration and function as those of theabove-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

As illustrated in FIG. 38, information display device 1J is installed inpartition 41 of which the upper part is curved. As illustrated in theexploded perspective view of FIG. 39, structural body 410 that serves asthe basis of partition 41 is a plate-like structure having a curvedupper part, recess 410 a is formed by depressing a part of the upperpart, and plate-like body 43 is formed on recess 410 a. Display panel 23is attached to be over plate-like body 43 in recess 410 a. Surfacemember 11 is attached so as to cover display panel 23 and structuralbody 410.

FIG. 40 is a schematic sectional view of information display device 1J.Information display device 1J includes plate-like body 43 which is apart of structural body 410, display panel 23, and surface member 11.Plate-like body 43 has first attaching surface 43 a, second attachingsurface 43 b opposite to first attaching surface 43 a, and side portion43 c that connects first attaching surface 43 a and second attachingsurface 43 b to each other.

Display panel 23 is, for example, an OLED (Organic Light Emitting Diode)display or the like, and is a flexible display device that can be bent.Display panel 23 has first display surface 23 a via curved portion 23 c,and second display surface 23 b opposite to first display surface 23 a.Display panel 23 is attached onto plate-like body 43 such that firstdisplay surface 23 a covers first attaching surface 43 a, second displaysurface 23 b covers second attaching surface 43 b, and curved portion 23c covers side portion 43 c. Display panel 23 can display differentinformation on first display surface 23 a and second display surface 23b.

Display panel 23 disposed on plate-like body 43 in recess 410 a may havea thickness that does not protrude to the outside of recess 410 a, thatis, does not protrude from the outer surface of the other parts ofstructural body 410. In other words, the vertical and horizontal lengthand thickness of display panel 23 are configured to substantially matchthe vertical and horizontal length and depth of recess 410 a.Accordingly, the surface of structural body 410 other than the partwhere recess 410 a is formed can be substantially flush with the displaysurface of display panel 23.

Surface member 11 has a surface area larger than that of display panel23, and is pasted so as to cover recess 410 a to which display panel 23is attached and the other parts of structural body 410.

Information display device 1J according to the embodiment has highdesignability by realizing information display in a seamless regionhaving no boundary with a wall surface, and additionally, can performvarious information presentations efficiently by disposing the displayregions on both sides of the wall. Furthermore, since the information isdisplayed on both sides of the wall with one information display device,the number of components and the complexity of wiring can be reduced.

In the above embodiment, as shown in FIGS. 39 and 40, the upper portionof the side portion 43 c of the plate-like body 43 has a approximatelyright-angled shape. Instead of this right-angled shape, it may be thecurved shape along with the curved portion 23 c of the display panel 23(or It may be a rounded shape on the corners). Thereby, the loadgenerated when the display panel 23 is attached can be reduced.

Modification Example 10-1

Between display panel 23 and surface member 11, a transparent ortranslucent member (not illustrated) disposed to cover the displaysurface of display panel 23 may be disposed.

The transparent or translucent member is, for example, a laminated film.The laminated film has such characteristics that, while having the lighttransmitting properties, the presence of the internal configuration(display panel 23 or recess 410 a) on the back side of surface member 11is not visible when viewed from the line of sight of user 13 (FIG. 37).The laminated film is pasted with an adhesive or the like so as to coverstructural body 410 and display panel 23 before surface member 11 isdisposed. With the configuration, light emitted from display panel 23can be projected on surface member 11 through the laminated film.Accordingly, when the information is not displayed, only the informationdisplayed in a region that is not different from the surrounding wallsurface can be made to emerge, and accordingly, extremely highdesignability can be realized.

Since the outer surface of the other parts of structural body 410 otherthan recess 410 a and the display surface of display panel 23 aresubstantially flat, the operation of pasting the laminated film becomeseasy. Accordingly, the steps required for manufacturing informationdisplay device 1J become simple. Further, the laminated film issufficient when the film has a certain degree of light transmittingproperties and does not require any special characteristics, and thus, afilm generally used as a building material can be used. For example,even in an environment with strict fire prevention standards such as inan aircraft, wallpaper that has already been used in such an environmentcan often be used as it is.

The transparent or translucent member may be provided only on displaypanel 23 in recess 410 a. In this case, the transparent or translucentmember is attached such that the front surface is flush with, or atleast protrudes from, the outer surface of the other parts of structuralbody 410 other than recess 410 a. In other words, the depth of recess410 a is a size obtained by adding the thickness of display panel 23 andthe thickness of the transparent or translucent member.

Modification Example 10-2

Partition 41 may not have the upper curved portion. For example, asillustrated in FIG. 41, structural body 410 which is the basis ofpartition 41 has a rectangular upper portion. In structural body 410,recess 410 a is formed by depressing a part of the upper portion similarto the example illustrated in FIG. 39, and plate-like body 43 is formedin recess 410 a. As illustrated in FIG. 42, display panel 23 is attachedto be over plate-like body 43 in recess 410 a. Display panel 23 is bentand disposed in a rectangular shape according to the shape of the upperportion of structural body 410 in which recess 410 a is formed. Asillustrated in FIG. 43, surface member 11 is attached so as to coverdisplay panel 23 and structural body 410.

In addition, similar to the above-described example, the vertical andhorizontal length and thickness of display panel 23 are configured tosubstantially match the vertical and horizontal length and depth ofrecess 410 a. Further, display panel 23 may be formed to have athickness that does not protrude from the outside of recess 410 a, thatis, does not protrude from the outer surface of the other parts ofstructural body 410. Similar to the above-described example, betweendisplay panel 23 and surface member 11, a transparent or translucentmember (not illustrated) disposed to cover at least the display surfaceof display panel 23 may be disposed.

In the above embodiment, as shown in FIG. 41, the side portion 43 c ofthe plate body 43 may be formed in a curved shape (or a rounded shape onthe corners). With such a configuration, even if the upper portion ofthe display panel 23 has a right-angled shape, the load generated whenthe display panel 23 is attached can be reduced.

Modification Example 10-3

The surface member 11 does not have to be arranged on both sides of thestructure 410. For example, the front surface member 11 may be arrangedon each of the front and back surfaces, the side surfaces, and the topsurface of the structure 410 such as a wall. In that case, the surfacemember 11 on each surface of the structure 410 may be made of differentmaterials. For example, a part or all of the surface member 11 thatcovers the first mounting surface 43 a, the surface member 11 thatcovers the second mounting surface 43 b, and the surface member 11 thatcovers the side portion 43 c of the plate body 43 are made of differentmaterials or patterns.

11. Other Embodiments

(1)

Information display devices 1 to 1J may determine the in-flightconditions (meal time, sleep time, before and after takeoff and landing,operation in turbulence, and the like) based on information from aconnected in-flight server (not illustrated), and change the contents tobe displayed. Since the information is displayed on the wall surface, itis possible to realize an information display device which can performdisplay without damaging the sense of luxury even when the displaycontents and the display amount are changed and the region that is notdisplayed is changed.

Similar to the example illustrated in FIG. 2, information displaydevices 1 to 1J include touch panel 21, CPU 22, and display panel 23.CPU 22 selects information to be presented to user 13 (FIG. 1) based oninformation from the in-flight server, and displays optimal information.

According to the above-described operation, in the embodiment, itbecomes possible to realize an information display device that canprovide information optimal for the user in accordance with thein-flight conditions without damaging the sense of luxury.

In the embodiment, a case where the in-flight conditions are acquiredfrom the in-flight server is employed as an example, but the in-flightconditions may be determined by CPU 22 from a clock built in theinformation display device, a sensor that detects inclination orvibration, and the like. Further, in a case where there are a pluralityof information display devices in the cabin, an optimal informationdisplay device may be selected in accordance with the in-flightconditions. For example, when the passenger is eating, an informationdisplay device at a position that can be easily seen from the diningtable may be selected to display the information.

(2)

Information display devices 1 to 1J may determine the information fromthe in-flight environment sensor and change the contents to be displayedbased on the in-flight environment (temperature, humidity, illuminance,air pressure, and the like). Since the information is displayed on thewall surface, it is possible to realize an information display devicewhich can perform display without damaging the sense of luxury even whenthe display contents and the display amount are changed and the regionthat is not displayed is changed.

Similar to the example illustrated in FIG. 2, information displaydevices 1 to 1J include touch panel 21, CPU 22, and display panel 23.CPU 22 selects information to be presented to user 13 (FIG. 1) based oninformation from the plurality of sensors (not illustrated) which aredisposed in the cabin, and displays optimal information. For example, abutton for requesting a blanket is displayed when the temperature drops.Accordingly, it is possible to select information to be presented touser 13 (FIG. 1), and to display optimal information.

According to the above-described operation, in the embodiment, itbecomes possible to realize an information display device that canprovide information optimal for the user in accordance with thein-flight environment without damaging the sense of luxury.

In the embodiment, a case where the in-flight environment is acquiredfrom the in-flight environment sensor is employed as an example, but thein-flight environment may be determined from a clock or the like builtin the in-flight server or the information display device. Further, in acase where there are a plurality of information display devices in thecabin, an optimal information display device may be selected inaccordance with the in-flight conditions.

(3)

FIG. 44 illustrates a usage aspect of information display device 1Kaccording to the embodiment.

In the usage environment in the embodiment, information display device1K is disposed on wall surface 10 which is a part of the interior of theaircraft. Information display device 1K transmits the light of thedisplay panel from the back side of surface member 11 and displaysinformation in display region 1 a on surface member 11 such that user 13can be seen. Information display device 1K is characterized in that afilm having a designability and light transmitting properties is pastedto the front of the display device, and that the pattern of the filmhaving a designability is the same pattern as that of the wall surfacearound the display device.

Information display device 1K is used in any usage environment similarto the above-described embodiment. The description of informationdisplay device 1K having the same configuration and function as those ofthe above-described embodiments will be omitted, and the same referencenumerals will be given to the same configuration members.

FIG. 45 is a schematic sectional view of information display device 1Kof the embodiment. Information display device 1K includes surface member11 a, reflection member (half mirror) 12, structural body 54, touchpanel 21, display panel 23, wall surface member 11 b, and void 154. Void154 is formed between surface member 11 a and wall surface member 11 b,and is formed so as to surround the outer edge of display panel 23. Thefront side of surface member 11 a and the front side of wall surfacemember 11 b are decorated with the same pattern. As illustrated in FIG.45, surface member 11 a and reflection member 12 are disposed on thebottom surface of void 154. Accordingly, the boundary between wallsurface member 11 b and surface member 11 a can be made prominent. Themember to be pasted to the bottom surface of void 154 may be wallsurface member 11 b.

In order to realize an information display device in which displayregion 1 a and other parts can be seen seamlessly, it is preferable thatvoid 154 is not present. However, by providing void 154, during themaintenance, only surface member 11 a can be detached from wall surface10 and only display panel 23 or touch panel 21 can be picked up.

It is preferable that void 154 has a width that does not hinder removal.For example, when the void has a width of approximately 0.5 mm to 2 mm,it is considered that both aesthetic appearance and practicality can beachieved.

With the above-described configuration, information display device 1Kaccording to the embodiment does not allow user 13 to feel the positionand the presence of display panel 23, can detach and replace only thedisplay panel 23 without peeling off the entire wall in the event of afailure. Accordingly, information display device 1K can make themaintenance simple while realizing a seamless design in which the jointsare not visually prominent.

(4)

In the above-described embodiment, the surface member 11 may include atransparent member, even if not particularly described. In this case,the transparent member may have same configuration and function as thetransparent member 53 of the third embodiment and the like.

(5)

In the above-described embodiment, a part or the entirety of processingof each functional block may be realized by a program. A part or theentirety of processing of each functional block may be executed by aprocessor in a computer. A program for performing each processing may bestored in a storage device such as a hard disk or a ROM, and may be readand executed on the ROM or the RAM.

In the above-described embodiment, a processor formed by a dedicatedelectronic circuit designed to realize a predetermined function may beincluded instead of the CPU. Further, instead of the CPU, the functionsmay be realized by various processors such as an MPU, a GPU, a DSP, anFPGA, and an ASIC. The processor may be formed by one or moreprocessors.

In the above-described embodiment, an example has been described inwhich information display devices 1 to 1J are installed in the aircraft.However, the disclosure is not limited thereto. The location whereinformation display devices 1 to 1J are installed may be other movingobjects or vehicles such as trains, buses, ships, and the like.

As described above, the above-described embodiments have been describedas an example of the technology disclosed in the application. However,the technology in the disclosure is not limited thereto, and can beapplied to embodiments in which changes, replacements, additions,omissions, and the like are appropriately made. Further, it is alsopossible to achieve a new embodiment by combining each configurationelements described in the above-described embodiments.

REFERENCE NUMERALS

-   1-1K: Information Display Device, 2: In-flight Server, 11,11 a:    Surface Member, 11 b: Wall Surface Member, 12: Reflection Member,    13: User, 20: Display Device, 21: Touch Panel, 22: CPU, 23: Display    Panel, 23 a: first Display Surface, 23 b: Second Display Surface, 23    c: Curved Portion, 26: Seat Monitor, 28: Ambient Light Sensor, 32:    Slight-Adhesive Layer, 33: Reflection Layer, 35: Structural Body,    37: Cushion Sheet, 38: Fixing Member, 40: Decorative Film, 41:    Partition, 41 a: Surface, 41 b: Surface, 42: Light-transmitting    Plate, 43: Plate-like Body, 43 a: First Mounting Surface, 43 b:    Second Mounting Surface, 43 c: Side Portion, 53: Transparent Member,    54: Structural Body, 55: Space, 56: Display, 57: Housing, 58: Film,    59: Film, 60: Base Member, 61: Ceiling, 71: First Layer, 72: Second    Layer, 82: transparent Member, 83: Mask Layer, 83 a: Outer Edge, 83    b: Inner Edge, 85: Reflection Layer, 93: Crew, 94: Wall Surface,    100: Structure, 100 a: Structural Body, 101: Seat, 105 a: Retainer,    105 b: Retainer, 106: Screw, 110: Plate-like Member, 120:    Reflectance Variable Reflection Layer, 121: Reflection Layer, 122:    Door Surface, 154: Void, 231: Display Surface, 410: Structural Body,    410 a: Recess

PRIOR ART

-   Patent Document 1: JP2012-118513

1. An information display device attachable to a structure, comprising:a display panel that has a display surface and displays information onthe display surface; and a surface member that is disposed on a displaysurface side of the display panel and through which only the informationdisplayed on the display surface of the display panel becomes visiblewhen the display panel is turned on, wherein the surface member includesa first layer disposed on a front side, and a second layer disposed on adisplay panel side with respect to the first layer and adjusting lighttransmittance of the surface member.
 2. The information display deviceof claim 1, wherein the first layer is formed by printing, painting, ora film, and wherein the second layer is formed by printing, painting,vapor deposition, or a film.
 3. The information display device of claim1, wherein a light transmittance of the second layer is 40% to 60%. 4.The information display device of claim 1, wherein the second layer isformed by a half mirror having a light transmittance of 40% to 70%. 5.The information display device of claim 1, wherein the second layer isan optical filter, and wherein the optical filter is configured totransmit only light from the display panel and suppress transmission ofexternal light.
 6. The information display device of claim 1, whereinthe first layer and the second layer are configured to have a totallight transmittance of 8% to 15%.
 7. The information display device ofclaim 1, wherein the display panel has a screen luminance of 200cd/m{circumflex over ( )}2 or less after transmission through thesurface member.
 8. The information display device of claim 1, whereinthe display panel has a luminance of the display surface adjusted to 800cd/m{circumflex over ( )}2 or more.
 9. The information display device ofclaim 1, wherein the surface member includes a plate-like member,wherein the first layer is disposed to be in close contact with a partor the entirety of a front side of the plate-like member, and whereinthe second layer is disposed to be in close contact with a part or theentirety of a back side of the plate-like member.
 10. The informationdisplay device of claim 1, wherein the surface member includes atransparent or translucent film member, wherein the first layer isdisposed to be in close contact with a part or the entirety of a frontside of the film member, and wherein the second layer is disposed to bein close contact with a part or the entirety of a back side of the filmmember.
 11. The information display device of claim 10, wherein thesurface member includes a light-transmitting plate disposed on a backside of the second layer.
 12. The information display device of claim 1,wherein the second layer is formed by translucent solid printing. 13.The information display device of claim 12, wherein the printing isperformed by painting in black with a light transmittance of 40% to 60%.